Price-scale.



G. WALKER.

PRICE SCALE. APPLIGATION FILED JUNE 1,1900.

909,486, Patented Jan. 12, 1909.

4 SHEETS-SHEET 1.

G. WALKER.

PRICE SCALE.

- APPLICATION FILED JUNE 1,1908.

909,486, Patented Jan. 12, 1909. v I 4 SHEETS-SHEET 2.

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I Patented $211.12, 1909.

G. WALKER.

PRICE SCALE APPLIOATION FILED JUNE 1,1908. 7

G. WALKER.

PRICE SCALE. APPLICATION FILED JUNE '1, 19os.

909,486. Patehted Jan. 12. 1909.

4 SHEETS-SHEET 4.

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PRICEFSCAIJE.

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120 whom it may concern:

Be it known that l, GEORGE W LKER, a g

'vided with a hollow post Q from the upper dun-mi the United States, residing at New Britain, in the'county of fiartiord and State of Connecticut, have invented certain new and useful Improvements in Price-Scales, of which the iollowmg 1s a specification.

.My invention relates to improvements in pr'ce scales and the main objects of my improvement are simplicity and economy in construction with convenience and efiiciency in use, particularly with reference to the con.-

nection oi the scale beam with the swinging ini'iicator whereby a much greater range oi prices is indicated on a case of the same height. V

in the accompanying drawing :Figure 1 is a front elevation of my indicator. 1 Fig. 2 is a rear elevation of the upper portion ofthe case. Fig. 3 is mainly an enlarged vertical.

section on the linear a: of Fig; 5, some of the parts being shown. in elevation and some of theparts being broken away. Fig. 4 is a reduced plan view of the frame for the platform. Fig. 5 is a horizontal section of the case and indicator on the line 'y y of Fig. 3, with aplan view of the other parts, the platform and platform frame being removed and some of the parts broken away. This view is on the same scale as Fig. 3. Fig. 5-5- is an end view of the shorterend of the scale beam and attached parts. Fig. 6 is an enlarged horizontal section ofthe case on the line a of Fig. 2, together with a plan view of the dial and indicator, the latter being illustrated as moved.

to one side preparatory to removal. Fig. 7 1s a vertical section of the case on'the line 8 of Fig. 5, with an elevation of the dial and indicator, the latter being in the same position as in Fig. 6.

parts being'broken outand shown in section. Fig. 9 is a sectional plan view of the scale beam fork and connected indicator hub.

Fig. 10 is a jvertical section of one end of the platform cross-arm on the line 1; of Fig. 5.-

i ig. 11 is a transverse section of the same on the line a of Fig. 10.

section'oi the indicator hub. Fig; l3'isla Y horizontal section of one of the parallel'arrris hollow base as shown in Fig. 3.

the bottom of the threaded for the reception of thesaid thread The plat- .for'm 'rame is provided Fig. 8 is a partial side elevation of Y the indicator hub and scale beam, some of'the.

Fig.1'2 is a horizontal base A and the up Patented (Fan. 12, isco.

prop r manner, as for example by screws e Fi 3. The oppositev end of the base is pro end of which post the pivotal brackets 1 for the scale beam D extend laterally and ion itudinally towards the case extension B. T e

scale beam D is provided with a frame like head carrying knife edge pivots 16, by-which the said beam'is pivotally mounted or tub LANns'ns, FRARY AND length through the center. of which cup a M platforrri supporting rod 19- extendsverth cally nected' with the base A by means of a link 20 that is pivoted by oneend to the lower end or" the said rod and by its other end to a malleable bracket 21 which is secured by a'screw 22 to the under side. of a stud 23 within the The upper end of theplatformsupporting rod is screw. threaded and provided with a set out 24 which is first put on and then the cup 18 is screwed upon the said rod above. the nut 24, cup being drilled and er end of the said rod 19.

with a centralhub 25 whichis centrally drilled and threaded for being screwed upon the upper end of the supporting rod 19 while the'lowerside of the said hub is provided with lugs 26 that'enter the inside of the cup 18' when'the hub rests upon the upper edge of the said cup, as shown in Fig. 3. "The top of the hub-25 is provided with a-small central and upwardly projecting boss 27, while platirom'supporting arms 28 extend outwardly from the edge of the ed up said hub with their upper-faces from end to end level with the top of the said hub outside of the central boss. The platform-29 is prefierably a marble slab or disk having" a fiat under-face with acentralrecess or socketiSOto center the said platior on the hub '25, as

shown in Fig. 3'.

\ The case'e'xtensionE is 'jp'rovided with an enin 31 its edge at its lower part t cug which opening the longer end of the scale beam D extends. For co enience of ,thelower endof the saidrod being connamental effect, I also providethe lower part ments of which are described b of the case extension with side openings to which I apply suitably glazed frames 32, so that parts of the interlor mechanism may be seen. The upper art of the case extension has the ordinary an like form with a large 0 ening and glazed frame 33 on one side for t e computing dial 34, While the upper part of the other side has a smaller 0 ening and glazed frame 35 for the rear dia 36, which shows to the customer the Weight, but not the rice. The two dials may be the op 0- site aces of the same sheet of metal or otlier material. With the exception of a greater range for the computing dial these dials are of the ordinary construction and arrangement. By means of the construction of the indicator and scale beam I am enabled to give on the dial the price of any given weight up to five pounds at prices ranging from 4 to cents per pound consecutively. In other words, I give the price of any given weight at any one o forty seven diiferent prices, Whereas ordinarily less than thirty difi'erent prices are 'ven on the dials of thisclass of scales. Orinarily the scale beam is pivoted so as to carry its longer end downwardly when a weight is placed on the platform or in the pan. In my scale this end of the scale beam moves upwardly instead of downwardly. Ordinarily the swinging indicator and its pendulum counter balance are pivoted directly to the case at a point considerably above the longer end of the scale beam and consequently the center of the segments of -coneentric circles described by the indicator is necessarily at a considerable distance above that end of the scale beam even when in its highest position. In my scale, the indicator is iivoted directly to thelon'ger end of the sea e beam instead of to the'case, and the center of the concentric circles, the segthesaid indicator is within the range of t e longer end of the scale beam when in its lowest position,

whereby I can bringthe rice dial much nearer to the longer end 0 the scale beam than in the ordinary scale.

The longer end of the scale beam is provided with a fork, the parallel arms of which fork are provided with hollow bosses 37 Within which I dplace cylindrical blocks 38 having V shape spaces 39 extending longitudinally therethrough. Ihese blocks are secured and held in proper position therein hyrmeans of set screws 40,'while the outer ends of the said blocks are covered b the caps 42. The body portion of the indicator 43 is of an ordinary construction, with its indexedge notched with as many notches as there are circles of amounts to be indicated on circles are calculated for. The lower end of the indicator is secured by means of screws 44 to its hub 45, which hub is provided with a flange 46 to one side of which flange the indicator is placed. The hub 45 of the indicator is provided with a central bore 47 within which is placed a cylindrical block 48, having an acute angled V shaped slot 49 in one side for its whole length. The length of this block and the indicator hub 45 is such as to properly fit in between the two hollow bosses of the fork of the scale beam. A knife edge strip 51 that fits the slot 49 the block 48 and is of a length to extend into the obtuse angled V shaped spaces in the pivotal blocks 38 of the scale beam, is inserted and secured in the indicator hub, the.projeeting ends of which strip form the knife edge pivots by which the indicator is mounted on the longer end of the scale beam. The block 48, is secured in the indicator hub by means of the screw threaded upper end of the rod 50 of the counter balance, which threaded end iswhile by making the counter balance of two parts the outer one may act as a set nut for more securely holding the complete counter baglance againstaccidental movement on its ro I One side 45 is provided with a cam 54 which is .in the form of a segmental piece secured thereto by a pivotal screw 55 at one end, while its opposite end is provided with an adjustingscrew of the flange of the indicator hub 76 that extends therethrough in a radial direction and bears on the side of the indicator hub. If desired the said cam may also be provided with a slotted lug -56, to receive a screw 57, Fig; 8, to revent that end of the cam from accidents. 1y movin outwardly. The outer edge or periphe of t e cam is the effective dperiphery of the indicator hub. A tern ere steel 'band 75 is secured by one end to t e indicator hub by means of the set screw 52 which also serves the urpose of holding the knife edge strip. ThlS band extends over the outer edge of the cam to the hook 58, to which its opposite end is secured, the said hook being mounted on an adjustable post 59, that is screwed into the top of the hollow base A of the case, the said post being held against accidental unscrewing by means of a set nut 60. When the indicator stands at zero as shown in Figs. 1, 2 and 3 the index edge of the indicator, (the left hand edge in igs. land 3,) is in' alinement lower. end 0'1 the indicatorbein g rfifse permat the said index edge to be in emcnt rocked on its pivots to move its body over the dials.

offset lower end and the cam compensates .:or this change of fulcrum so that notwithstanding said change the swingng movement and effective axis of the osoillating indicator is precisely the same as if it mounted on a fixed fulcrum and each of the notches in the body of the indicatordescribes a segment of approximate circle."

11: passing over the dial from zero to five pounds it changes its position from that shown by full lines in Fig. 3, to the position indicated therein by broken contour lines. The index edge is then on the brolren line a which meets the line to at the edge of the cam just below the upper edge of the scale beam. The apex of the i formed by the junction of these lines is the center or" the several segments dcscribed by the notches in the edge of the indicator. It is by this construction that the dial is carried downwardly nearer to the end of the scale beam and-the greater range of prices may be placed on the dial in a scale of a given height. An adjustable stop 61, Fig. 3, is placed in the case to limit the upward movement of the counter-balance 53. The steel strip or operating band 7 5, and similar strips in other scales, constitutes means for operating the indicator through the move-- ment of the scale beam. 7

To the under side of the top of the hollow base A near the longer end of the scale beam 1 secure a cup or-dash pct 62, by means of two or more screws 87. The top of the base is bored and threaded to receive a filling cap '63, which maybe removed for convenience of putting oil in the dash pot. This cap is provided with a screw threaded central bore 64. Through this bore a piston rod 65 extends to the lower end of which rod, a piston 66 is socured. The upper end of the piston rod is provided with a forked head 66, by means of which head the iston rod is pivotally con' nected to the see c beam. The pistonrod'is threaded-at the portion which passes through. the filling cap 63 and for some distance above the said cap and a nut 67 is screwed thereon. The exterior of this nut is threaded as at 84 to fit the internal thread of the filling cap. When the scale is in use the nut 67 is left un screwed from the filling ca and the dash pot has the ordinary action o similar dash pots The steel strip '75- "By being pivoted at a checking the vibrations of the indicator. When the scale is to be moved from place to place the nut ijs screwed down on the piston rod and also into the threaded center of the filling cap, whereby the dash ot is closed to hold the odor other li uid t erein while at the same time the scale cam is held firmly in place so that it will not move up and down when handled.

The shorter end of the scale beam Dis provided with a fixed screw threaded stud 68 in alinement with the main body of the said beam, upon WlfliClLSi/Udfin adjustable counter poise or weight- 69 is screwed and which can be changed in position by screwing it to or from the fulcrum of the scale beam so as to balance the same as desired. The cup 18 of the cross arm 41 may be used as a deposit for shot 70, or other load for adjusting the scale. 1 mount a horizontal swinging arm 71 on the head end of the scale beam by means of 'a pivot or pin 7 2 the outer or free end of the said arm being screw threaded and provided with a-weight 7 3 that is centrally bored and threaded to fit the threaded outer end of the said arm. A bracket like hook 74 is secured to the scale beam in position to receive the said weight 78, when the meals swung into position to carry this weight to the right of thescale beam fulcrum and consequently to the shorter end of the scale beam, as shown in Figs. 1 and5, and hold the said arm and weight against accidental displacement. The scale is adjusted to the zeropoint when this shifting weight 7 3 is at the shorter end of the scale beam. Another bracket like hook 85 is mounted onone side of the longer end of the scale beam to receive and hold the said swingin arm and weight when the weight is shifted t ereto by swinging it on its ivot pin 72, from the position shown, by in 1 lines in Figs. 1 and 5 to the position indicated by broken lines in the said figures. When in this latter position five pounds are added to the weight indicated on the dial. The range of the scale as shown when balanced at the zero point is only five pounds, butby shifting t e five pound Weight 73, to the longer end of the scale beam, the range is ten pounds. In other Words anything less than five pounds cannot be weighed and just five pounds will balance the scale at zero.

' Above five pounds and less than ten pounds can be weighed, in which case five pounds must be added to the weight indicated on the dial in order to give the real weight. The weight and swinging arm bear on the bracket like hookswith sufiicient friction to make them stay in place and at the same time do not bear so hard but that they can be readily I. pulled ofi and on in changing their position.

fixed point on the scale beam, the change from one position to the other of this five pound weight is always positive and can bequichlyjiaade.

referring now to the specific construction of the knife edge pivots. for the scale beam and platform cross arm, the scale beam D at its shorter end carries a pair of knife edge pivots 17, that have their hearings on the respective ends of the cross arm 41. These ends of the cross arm are recessed as shown in Figs. 10 and 11, to receive the grooved agate blocks 77, which blocks and the outer ends of the knife edge pivots 17 are covered at their ends by means of the caps 78 that are secured by screws 79 to the endfaces of the said cross arm; Thesaid caps also cover the grooved sides of the blocks and back edges of the knife edge pivots. The knife edge pivots 16 on which the scale-beam is fulcrunied are of the same construction only they are the other side up, the pivots being carried by the scale beam while the bearings therefor are carried by the brackets 15 on the hollow post C of the base A. The outer ends and to of the pivots and agate blocks are co'vere in the same way by the caps 80 on the outer ends of the brackets 15, which caps are precisely the same as the caps 78 and therefore the construction shown in Figs. 10 and 11, makes it unnecessary to further illustrate the scale beam pivots and their bearlThe dial 34 may be held in position in the case extension B in any proper manner, preferably by resting it at three 1points on projections 81 formed on one of t e inner walls of the case extension and securing itthereon by means of screws 82, as best shown in Fig. 5. I prefer to form the rear pointer 83 for the rear dial 36 in one piece with the indicator 43, by doubling the metal onitself at the upper end of the said indicator, as shown in Figs. 6 and 7. In order to permit of inserting and removing the indicator from the case extension without removing the dial, I cut off the upper corner of the dial on the zero I side, as at 86,Fig. 7, so that by carrying the upper end of the indicator to this cut away corner of the dial, the rear pointer 83 may pass in by the said corner from the front or out by the said corner from the rear and thus the doubled indicator can be inserted or re moved when the dial is in place.

In scales of this class it is very important that the link at the lower endof the platform supporting rod be properly adjusted. By-

forming the stud 23 on the inside of the hollow base and securing thereto the malleable bracket 2] to which one end of the said link is pivoted, I provide a cheap and convenient means for'adjustiug this link. After the parts are in place the thinner portion of the bracket 21 may be bent to carry that end of the link up or down as may be desired and thereby effect the proper adjustment, so that the scale will indicate the correct weight, whether the load on the platform is placed centrally or otherwise. By the special construction of the platform frame and attached marble slab I provide a cheap and compact construction in which no part engages or projects beyond the edges of the slab as in most scales, and one that isconvenient to put in place and is not likely to be accidentally displlalced. The special construction of the 'fe edge pivots and other parts relate to economy-"of production with efficiency in use'l It is apparent that some changes from the specific construction herein disclosed may be made and therefore I do not wish to be understood as limiting myself to the precise form of construction shown and described, but desire the liberty to make such changes, in working my invention, as may fairly come within the spirit and scope of the same.

I claim- 1. In a scale, the combination of a pivoted scale beam with a swin ing indicator pivotally mounted on the sa d scale beam, means for opera-tin the said indicator through the movement 0 the, said scale beam and a stationary dial over the face of which the said indicator swings.

2. In a s'c'ale, the combination of a case with a scald beam pivotally mounted thereon, a swingin' Y indicator having a hub by which it is pivo ally mounted on the scale beam, and a band connected by one end to the said hub and by its other end to the said case with its middle ortion bearing on the periphery of the said ub;

3. The combination of a case with a scale beam pivotally mounted thereon and having two parallel arms at its outer end, a swinging indicator having a hub and pivots by which it is mounted between the said arms of the scale beam, a band connected by one end to the said hub and by its other end to the said casewhile its middle portion bears on the (periphery of the said hub for swinging the in icator in the said fork as the scale beam moves on its fulcrum.

4. The combination of a case with a pivoted scale beam, an indicator pivotally mounted onsaid scale beam, a cam carried by the said indicator, and a band secured by one-end to the said indicator and by its other end to the said case with its middle ortion bearing on the said cam, the said cam aving its periphery to one side of the pivots of the indicator and the said indicator havin its index edge in alinement with the perip ery of'the said cam.

5. The combination'of a case, with a dial having segments of circles indicated thereon,

a scale beam pivotally mounted on the said case, an indicator havin a straight body ortion for moving over t e said dial and a iub that is offset to one side out of longitudinal alinemcnt with the said body portion, the said indicator bein pivotally mounted on the said scale bee m by means of the said offset hub and means for operating the said indicator through the movement of the said I tries,

scale beam; I

6, In a scale, the combination of a scale beamcarrying vpivotal bearings with an indicator hub having a central bore, an indicator carried by the said hub, a grooved block fitted to the said bore, a counterbalancing rod screwed into the indicator hub with its I end bearing on the said grooved block to. hold it in place, a knife edge strip within the said grooved block with its ends extending therefrom and resting in the pivotal bearings of the scale beam, and a set screw in the said hub with its inner end bearing on the said knife edge strip for holding it in place.

7. In a scale, the combination of a case with a scale beam carrying pivotal bearings, an indicator hub having a groove therethrough to receive a knife edge strip, an indicator carried by the said hub, a knife edge strip within the groove of the hub with its ends extending therefrom and resting in the pivotal bearings of the scale beam, a set screw in the said hub with its inner end bearing on the said knife edge strip for holding the said strip in lace, a cam carried by the said indicator hu and a band with one end secured to the set screw that holds the knife edge'strip and its other end secured to the case while its middle portion bears on the outer edge of the said cam.

8. In a scale, the combination of a case, a scale beam (pivotally mounted on the said case, an in icator with a pivotal hub on which the said indicator is mounted, a cam mounted on the said hub and having a peripheral face for an operating band to rest upon, means foradjusting the said cam to move its peripheral face towards and from the pivots of the said. indicator hub and a band for operating the said indicator through the movement of the said scale beam.

9. In a scale, the combination of a case, a scale beam ivotally mounted on the said case, an indicator with a flanged hub by means of which the said indicator is pivotally mounted, a cam ivotally mounte by one end on one side oi the flange of the said hub and having a peripheral face for an operating band to rest upon, an adjusting screw at the opposite end of the cam from that by which t e cam is pivoted, the inner end of the said adjusting screw bearing on one side of the indicator hub and a band for operating the said indicator through the movement o the said scale beam. v h

10. In a computing scale, the combinatiop of a case with a dial having amounts at various prices per pound-indicated thereon in segments of concentric circles, with a scale beam pivotally mounted on the-ease, an indi .cator'mounted on the scale beam and having price marks thereomandineans for operatin the said indicator the said scalebeam, the center of the concenthrough the. movement. 0

for operating t circles described by the; said indicator bei 'within'the range or" movement'of that end of the scale beam on which the said indi -j cator is mounted, whereby a-gr'eat range of, prices may be indicated'withm a given height above the scale beam.

11. In ascale,,the combination of a case with'a scale beam pivotally mounted thereon, an indicator pivotally mounted on the said "scale beam, a cam carried by the said indicator, a band with its middle portion in engagement with the said cam, one end of the said band being secured to the said indicator, and a post adjustably mounted on the said case with the other end of the saidband secured to the said post.

12. In a scale, the combination of a case with a scale beam pivotally mounted thereon, an indicator pivotally mounted on the said scale beam, a cam carried by the said indicator, and a band of tempered steel with its middle portion in engagement with the said cam while one end is secured to the said indicator and its opposite end is secured to a hook on the said case.

13. In a scale, the combination of knife edge ivots mounted on one part'with another part aving a cylindrical bore, a longitudinally grooved cylindrical block mounted in the said cylindrical bore with one of the pivots takingits bearing in the groove of the said block, and a set screw in the part having the said cylindrical bore with the end of the said set screw, in engagementwith the cylindrical face of the said block.

14. In a scale, the combination of a case having a fan shaped upward extension with a dial of the same form mounted therein and an indicator mounted to oscillate over one face of the said dial and carrying at its upper end a downwardly projectin ointer for movingover the opposite face 0 t e said dial, the said dial having one of its upper corners cut ed to ermit the introduction and removal of the in icator when the dial is in place with-1 in the said case.

15. In a computing scale, the combination of a case comprising a hollow base and an up v wardlfi pro ect1ng case extension,

Witl 1 ;f .a '1 scale am pivotally mounted on the'said case, an indicator pivotally mounted on-the longer end of the saidscale beam,mea1i s ,fo15 operating the said. indicator through -the movement of the said scale beam, a. dash'fpot' v secured within the said base to the under Side of its top, apiston within the said dash pot, and a piston rod connectinglthe said piston with the said longerendiof t e scale beammf t. 16. In a scale,'the combinationofa pivotally mounted'scale beam with'an indicator and dial for indicating the weight on the scales from zero up to a given amount, means he saidindicator through the" movement of the said scale beam, a

weighted arm pivotally masts-aha ma tic scale beam, whereby shifting the weighted arm by swinging it to the opposite side of its pivotal connection with the scale beam adds a given amount to the weight indicated on the dial. v

17. In a scale, the .combination of a pivotally mounted scale beam-with an indicator and dial for indicating the weight from zero up to a given amount, a horizontally swing- 111g arm pivotally mounted by one end on one of the sides of the said scale beam, a weight adjustably mounted on the opposite end of the said arm and means for holding the said arm and weight by the side of said the scale beam when swung towards the scale beam from either side of the pivotal connection with the said beam.

18. In a scale having an indicator piveoaese otally mounted in bearings therefor, the combination of the said indicator bearings with an indicator hub having a cylindrical bore therethrough, an indicator carried by the said hub, a cylindrical block having an acute angled V shaped slot in one side for its whole length, the said block being fitted to the cylindrical bore of the said hub, a knife edge strip fitted to the said V shaped slot and block with its ends projecting therefrom, and means for securing the said knife edge strip and cylindrical block within the bore of the said hub.

' GEORGE WALKER.

Witnesses:

EUGENE DE ,LoNG, FRANK T. 'PUNDERSON. 

